Self-supported SnO2 nanowire electrodes for high-power lithium-ion batteries

Young Dae Ko, Jin Gu Kang, Jae Gwan Park, Sungjun Lee, Dong-Wan Kim

Research output: Contribution to journalArticle

107 Citations (Scopus)

Abstract

We propose a promising synthetic technique, which we term 'self-supported nanostructuring', for the direct growth of one-dimensional, SnO2 nanowires on the current collector. The technique is based on a vapor-liquid-solid (VLS) mechanism via thermal evaporation at low synthetic temperature (600 °C). The as-synthesized SnO2 nanowire electrode did not have any buffer layer prior to the nanowire evolution, and exhibited a single crystalline phase with highly uniform morphology and a thin diameter ranging from 40 to 50nm with a length of more than 1 μm. The SnO2 nanowire electrode demonstrated stable cycling behaviors and delivered a high specific discharge capacity of 510mAhg-1, even at the 50th cycle, which exceeded that of SnO2 nanopowder and Sn nanopowder electrodes. Furthermore, the SnO2 nanowire electrode displayed superior rate capabilities with a rechargeable discharge capacity of 600mAhg-1 at 3C (where 1C = 782mAg-1), 530mAhg-1 at 5C, and 440mAhg-1 at 10C. Our results support the potential opportunity for developing high-performance Li-ion batteries based on Li-alloying anode materials in terms of high-power density and high-energy density.

Original languageEnglish
Article number455701
JournalNanotechnology
Volume20
Issue number45
DOIs
Publication statusPublished - 2009 Nov 9
Externally publishedYes

Fingerprint

Nanowires
Lithium
Electrodes
Ions
Thermal evaporation
Buffer layers
Alloying
Buffers
Anodes
Hot Temperature
Vapors
Lithium-ion batteries
Crystalline materials
Temperature
Liquids
Growth

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)

Cite this

Self-supported SnO2 nanowire electrodes for high-power lithium-ion batteries. / Ko, Young Dae; Kang, Jin Gu; Park, Jae Gwan; Lee, Sungjun; Kim, Dong-Wan.

In: Nanotechnology, Vol. 20, No. 45, 455701, 09.11.2009.

Research output: Contribution to journalArticle

Ko, Young Dae ; Kang, Jin Gu ; Park, Jae Gwan ; Lee, Sungjun ; Kim, Dong-Wan. / Self-supported SnO2 nanowire electrodes for high-power lithium-ion batteries. In: Nanotechnology. 2009 ; Vol. 20, No. 45.
@article{405dde3fa4be49debe3f42f0ce300647,
title = "Self-supported SnO2 nanowire electrodes for high-power lithium-ion batteries",
abstract = "We propose a promising synthetic technique, which we term 'self-supported nanostructuring', for the direct growth of one-dimensional, SnO2 nanowires on the current collector. The technique is based on a vapor-liquid-solid (VLS) mechanism via thermal evaporation at low synthetic temperature (600 °C). The as-synthesized SnO2 nanowire electrode did not have any buffer layer prior to the nanowire evolution, and exhibited a single crystalline phase with highly uniform morphology and a thin diameter ranging from 40 to 50nm with a length of more than 1 μm. The SnO2 nanowire electrode demonstrated stable cycling behaviors and delivered a high specific discharge capacity of 510mAhg-1, even at the 50th cycle, which exceeded that of SnO2 nanopowder and Sn nanopowder electrodes. Furthermore, the SnO2 nanowire electrode displayed superior rate capabilities with a rechargeable discharge capacity of 600mAhg-1 at 3C (where 1C = 782mAg-1), 530mAhg-1 at 5C, and 440mAhg-1 at 10C. Our results support the potential opportunity for developing high-performance Li-ion batteries based on Li-alloying anode materials in terms of high-power density and high-energy density.",
author = "Ko, {Young Dae} and Kang, {Jin Gu} and Park, {Jae Gwan} and Sungjun Lee and Dong-Wan Kim",
year = "2009",
month = "11",
day = "9",
doi = "10.1088/0957-4484/20/45/455701",
language = "English",
volume = "20",
journal = "Nanotechnology",
issn = "0957-4484",
publisher = "IOP Publishing Ltd.",
number = "45",

}

TY - JOUR

T1 - Self-supported SnO2 nanowire electrodes for high-power lithium-ion batteries

AU - Ko, Young Dae

AU - Kang, Jin Gu

AU - Park, Jae Gwan

AU - Lee, Sungjun

AU - Kim, Dong-Wan

PY - 2009/11/9

Y1 - 2009/11/9

N2 - We propose a promising synthetic technique, which we term 'self-supported nanostructuring', for the direct growth of one-dimensional, SnO2 nanowires on the current collector. The technique is based on a vapor-liquid-solid (VLS) mechanism via thermal evaporation at low synthetic temperature (600 °C). The as-synthesized SnO2 nanowire electrode did not have any buffer layer prior to the nanowire evolution, and exhibited a single crystalline phase with highly uniform morphology and a thin diameter ranging from 40 to 50nm with a length of more than 1 μm. The SnO2 nanowire electrode demonstrated stable cycling behaviors and delivered a high specific discharge capacity of 510mAhg-1, even at the 50th cycle, which exceeded that of SnO2 nanopowder and Sn nanopowder electrodes. Furthermore, the SnO2 nanowire electrode displayed superior rate capabilities with a rechargeable discharge capacity of 600mAhg-1 at 3C (where 1C = 782mAg-1), 530mAhg-1 at 5C, and 440mAhg-1 at 10C. Our results support the potential opportunity for developing high-performance Li-ion batteries based on Li-alloying anode materials in terms of high-power density and high-energy density.

AB - We propose a promising synthetic technique, which we term 'self-supported nanostructuring', for the direct growth of one-dimensional, SnO2 nanowires on the current collector. The technique is based on a vapor-liquid-solid (VLS) mechanism via thermal evaporation at low synthetic temperature (600 °C). The as-synthesized SnO2 nanowire electrode did not have any buffer layer prior to the nanowire evolution, and exhibited a single crystalline phase with highly uniform morphology and a thin diameter ranging from 40 to 50nm with a length of more than 1 μm. The SnO2 nanowire electrode demonstrated stable cycling behaviors and delivered a high specific discharge capacity of 510mAhg-1, even at the 50th cycle, which exceeded that of SnO2 nanopowder and Sn nanopowder electrodes. Furthermore, the SnO2 nanowire electrode displayed superior rate capabilities with a rechargeable discharge capacity of 600mAhg-1 at 3C (where 1C = 782mAg-1), 530mAhg-1 at 5C, and 440mAhg-1 at 10C. Our results support the potential opportunity for developing high-performance Li-ion batteries based on Li-alloying anode materials in terms of high-power density and high-energy density.

UR - http://www.scopus.com/inward/record.url?scp=70350648722&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=70350648722&partnerID=8YFLogxK

U2 - 10.1088/0957-4484/20/45/455701

DO - 10.1088/0957-4484/20/45/455701

M3 - Article

C2 - 19822930

AN - SCOPUS:70350648722

VL - 20

JO - Nanotechnology

JF - Nanotechnology

SN - 0957-4484

IS - 45

M1 - 455701

ER -